I bought one of these at Target on Sunday. Worked great on Sunday but while measuring the mash temp yesterday it went from 149 to 213 and now it says it's 156 degrees outside on my deck. It has about a 2 inch long silicone-looking cover over the end of the metal cord that plugs into the "wand" at the end. I'm going to return it rather than try the oven thing, I can't trust it anymore.
Kegged: Smokier Smoked Porter